$ git clone -n https://src.fedoraproject.org/rpms/bletchmame.git /var/lib/mock/f40-build-796240-140592/root/chroot_tmpdir/scmroot/bletchmame
Cloning into '/var/lib/mock/f40-build-796240-140592/root/chroot_tmpdir/scmroot/bletchmame'...
$ git fetch origin af95fb375c71c47a4ea62bc1e99bb83756f10a25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bletchmame
 * [new ref]         af95fb375c71c47a4ea62bc1e99bb83756f10a25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af95fb3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild